<!DOCTYPE html>
<html lang="zh-CN">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        h1 {
            width: 600px;
            height: 400px;
            line-height: 400px;
            margin: 0 auto;
            text-align: center;
            font-size: 100px;
            color: white;
            text-shadow: 0 0 10px black;
            background-image: linear-gradient(30deg, red, yellow, green);
        }

        @media print {
            h1 {
                background: transparent;
            }
        }

        @media screen {
            h1 {
                font-family: '翩翩体-简';
            }
        }

        @media all {
            h1{
                color: aquamarine;
            }
        }
    </style>
</head>

<body>
    <h1>身体健康</h1>
</body>

</html>